APA引文

Norbu, K., & Bhattarakosol, P. (2012). Usefulness determination of text-based CAPTCHA in a group of Developing countries. Chulalongkorn University.

Chicago Style Citation

Norbu, Kuenzang, and Pattarasinee Bhattarakosol. Usefulness Determination of Text-based CAPTCHA in a Group of Developing Countries. Chulalongkorn University, 2012.

MLA引文

Norbu, Kuenzang, and Pattarasinee Bhattarakosol. Usefulness Determination of Text-based CAPTCHA in a Group of Developing Countries. Chulalongkorn University, 2012.

警告：這些引文格式不一定是100％准確.